Chris Hayes from MSNBC talks to Michael Mann about global warming, deniers, and the season we call “winter.”

Chris Mooney in MotherJones:

1. Statements about climate trends must be based on, er, trends. Not individual events or occurrences. Weather is not climate, and anecdotes are not statistics.

2. Global warming is actually expected to increase “heavy precipitation in winter storms,” and for the northern hemisphere, there is evidence that these storms are already more frequent and intense, according to the draft US National Climate Assessment.

3. Antarctica is a very cold place. But global warming is affecting it as predicted: Antarctica is losing ice overall, according to the latest report of the Intergovernmental Panel on Climate Change. However, sea ice is a different matter than land-based or glacial ice. Antarctic sea ice is increasing, and moreover, the reason for this may be climate change! (For more, read here.)

Related It’s That Time Again. The Willful Ignorance of Right Wing Snow Trolling.